March 10, 201610 yr Hello, I have 9 HDDs in my NAS, some of them are connected at 3 Gbps speed and some at 6 Gbps even though they all support SATA 3 speeds. Some of them have some kind of warning saying they are successive to have a firmware update available. How can I proceed to align all of them at the highest speed possible? Is it possible to upgrade their firmware within Unraid without having to dismantle them? Thanks
March 10, 201610 yr Just so you know, you won't improve your performance by doing that, no HDD on the market reaches the SATA2 limit, SSDs are a different story.
March 10, 201610 yr Author Just so you know, you won't improve your performance by doing that, no HDD on the market reaches the SATA2 limit, SSDs are a different story. Interesting. Why? Could you elaborate?
March 10, 201610 yr SATA2 has a max theoretical speed of 300MB/s, real world is ~270MB/s, fastest HDDs on the market today can do up to ~225MB/s, older ones and 5900rpm disks usually below 200MB/s.
March 11, 201610 yr SATA2 has a max theoretical speed of 300MB/s, real world is ~270MB/s, fastest HDDs on the market today can do up to ~225MB/s, older ones and 5900rpm disks usually below 200MB/s. Its mainly a marketing thing with HDD manufacturers to specify that they are 6Gbps. For the exceedingly rare circumstances when the data requested from the drive is in its internal cache (around 32-64meg) then it will indeed transfer at 6Gbps.
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